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- Path: sobt.accessorl.net!user
- From: eric@accessorl.net (Eric Shaw)
- Newsgroups: comp.dcom.modems
- Subject: Re: faster than 28.8
- Date: Thu, 08 Feb 1996 00:57:50 -0500
- Organization: Access Orlando
- Message-ID: <eric-0802960057500001@sobt.accessorl.net>
- References: <sumner-2001961038000001@sumner.tiac.net> <4ds0fp$4ap4@news-s01.ny.us.ibm.net> <AD29910A96685C7229@asd-stat13-153.dial.xs4all.nl> <bgrubb-2301960739100001@10.0.2.15> <4e3lbi$r3m@brachio.zrz.TU-Berlin.DE> <eric-2601960120540001@sobt.accessorl.n <4famg4$1nai@seminole.gate.net> <4faoqp$15ci@navajo.gate.net>
- NNTP-Posting-Host: sobt.accessorl.net
-
- In article <4faoqp$15ci@navajo.gate.net>, dhaire@gate.net (doug haire) wrote:
-
- >I suggest, Eric, that you detail the environment for your tests. Systems
- >used, load possibilities, etc. My tests were run between my 486dx/4-100
- >and my BBS on a 486sx33, both running DOS 5.0 (the BBS also is using
- >Desqview with only one window open, the PCBoard system) and using DSZ by
- >Omen Technologies with a command line of 'dsz port 1 pB4096 rz -m'
- >The connection is over dial-up voice-grade telco lines from my home to my
- >home (a 20 mile loop to the CO and back over a SLC). the differing
- >connect speeds for the USR were done by restricting the maximum connect
- >speed via the &N settings. The Supra simply connected at the rate that it
- >did (26400/28800) without alteration [sigh].
-
- The environments for the tests were identical for both types of modems.
- The exact same two computers were used, and the same phone cord was strung
- between the modems, using ATX3D to dial without dialtone (no real phone
- line used), and ATA to answer on the other modem.
-
- Perhaps the Couriers have changed since the ones we have (some say "v.34
- ready" instead of v.34), or they need a real phone line.
-
- Is there any reason that the actual near zero delay between the modems
- could be a problem, or the lack of attenuation? I don't think this could
- be the problem though, because if it was, it shouldn't matter whether the
- files are compressed, and the Couriers did get about the rate they should
- on compressed files whenever they didn't exhibit the "halting" problem
- (where it doesn't send whats in its buffer for several seconds, sometimes
- over 30-45). I did notice that this halting problem got *MUCH WORSE* when
- I flashed the modems to 33.6K - it used to just pause for half a second
- once in awhile.
-